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Questions and Answers
How does increasing the temperature usually affect the pressure exerted by a gas in a closed container?
How does increasing the temperature usually affect the pressure exerted by a gas in a closed container?
- Has no effect on the pressure.
- Increases the pressure due to more frequent and forceful collisions of molecules with the container walls. (correct)
- Decreases the pressure due to slower molecular motion.
- Initially increases the pressure, but it stabilizes at a lower value over time.
Liquid pressure at a specific depth is affected by the shape of the container holding the liquid.
Liquid pressure at a specific depth is affected by the shape of the container holding the liquid.
False (B)
Explain how adding more solute affects the concentration of a solution, assuming the amount of solvent remains constant.
Explain how adding more solute affects the concentration of a solution, assuming the amount of solvent remains constant.
Adding more solute increases the concentration of the solution.
To decrease the concentration of a solution, one can add more ______ or reduce the amount of ______.
To decrease the concentration of a solution, one can add more ______ or reduce the amount of ______.
Match the action with its effect on the concentration of a solution:
Match the action with its effect on the concentration of a solution:
Flashcards
Liquid Pressure
Liquid Pressure
Force exerted by a liquid per unit area, caused by the motion of liquid molecules.
Concentration
Concentration
The amount of solute present in a given quantity of solvent.
Solute
Solute
The substance that dissolves in a solvent to form a solution.
Solvent
Solvent
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Increasing Concentration
Increasing Concentration
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Study Notes
- Liquids: Section 1
Learning Objectives
- Understand how pressure is created by liquid and gas molecules.
- Learn the definition of concentration.
- Differentiate between solute and solvent, understanding how concentration is increased or decreased.
Liquid Pressure
- A liquid contained in a vessel exerts thrust at all points below its free surface and exerts a liquid pressure.
Application of Liquid Pressure
- Water in the storage tank is maintained at a high pressure due to gravitational pull for public water supply systems.
Concentration
- Concentration is the measure of how much solute is dissolved in a specific amount of solvent.
- Concentrations can range from dilute to concentrated.
- Concentration can be measured using numerical quantities.
- Measurements include % by mass, % by volume, dilutions, and molarity.
- Concentration can be expressed mathematically as a ratio, such as grams per milliliter.
- Concentration equals the mass of the solute in grams / 100ml of solution.
Solute, Solvent & Solution
- Solute is the substance dissolving.
- Solvent is the liquid the solute dissolves in.
- Solution is a mixture where the solute is dissolved in a solvent.
Solvents
- Solvents are the component of a solution present in the largest amount.
- Solutes dissolve into solvents to form solutions.
Increasing and Decreasing Concentrations
- Adding more solute or reducing the amount of solvent increases the concentration of the solution.
- Adding more solvent or reducing the amount of solute decreases the concentration of the solution.
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Description
Explore the concept of liquid pressure and its applications. Understand concentration as the measure of solute dissolved in a solvent. Learn how to measure concentration using various methods like % by mass and molarity.
